Titration AHCl Titrated with NaOHVolume of NaOHpH0.01.005.01.1810.01.3715.01.6020.01.9521.02.0622.02.1923.02.3824.02.6925.07.0026.011.2927.011.5828.011.7629.011.8730.011.9635.012.2240.012.3645.012.4650.012.52Titration BHC2H3O2 Titrated with NaOHVolume of NaOHpH0.02.875.04.1410.04.5615.04.9220.05.3421.05.4622.05.6123.05.8024.06.1225.08.8726.011.3027.011.5628.011.7529.011.8730.011.9635.012.2240.012.3645.012.4650.012.52 1. Titration A, endpoint pH = Titration B, endpoint pH = 2. pKa or pKb = 3. Ka or Kb = 4. Why no K asked for Titration A? 5. Write the value of pKa and Ka that you determined from your graph. 6. If the actual pKa was 4.718, determine the percent error. If the actual Ka was 1.815x10-5, determine the percent error.

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Answered: Titration A HCl Titrated with NaOH…

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter25: Ph Measurements-buffers And Their Properties

Section: Chapter Questions

Problem 1ASA

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Titration A
HCl Titrated with NaOH
Volume of NaOH	pH
0.0	1.00
5.0	1.18
10.0	1.37
15.0	1.60
20.0	1.95
21.0	2.06
22.0	2.19
23.0	2.38
24.0	2.69
25.0	7.00
26.0	11.29
27.0	11.58
28.0	11.76
29.0	11.87
30.0	11.96
35.0	12.22
40.0	12.36
45.0	12.46
50.0	12.52

Titration B
HC₂H₃O₂ Titrated with NaOH
Volume of NaOH	pH
0.0	2.87
5.0	4.14
10.0	4.56
15.0	4.92
20.0	5.34
21.0	5.46
22.0	5.61
23.0	5.80
24.0	6.12
25.0	8.87
26.0	11.30
27.0	11.56
28.0	11.75
29.0	11.87
30.0	11.96
35.0	12.22
40.0	12.36
45.0	12.46
50.0	12.52

1. Titration A, endpoint pH =

Titration B, endpoint pH =

2. pKa or pKb =

3. Ka or Kb =

4. Why no K asked for Titration A?

5. Write the value of pKa and Ka that you determined from your graph.

6. If the actual pKa was 4.718, determine the percent error. If the actual Ka was 1.815x10^-5, determine the percent error.

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